Oppo F31 Pro Plus vs Xiaomi 15 – Price, Specs & Features

Q: Which phone has better performance, the Oppo F31 Pro Plus or the Xiaomi 15?

In this performance comparison, the Xiaomi 15 with its Snapdragon 8 Elite (3nm) performs better than the Oppo F31 Pro Plus with the Snapdragon 7 Gen 3 (4nm), thanks to superior chipset efficiency.

Oppo F31 Pro Plus alternatives

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Xiaomi 15 alternatives

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Oppo F31 Pro Plus

Snapdragon 7 Gen 3
4 nm
7000 mAh
80W
6.8"
1280 x 2800 pixels
50 MP
4K@30fps
Specs

Xiaomi 15

Snapdragon 8 Elite
3 nm
5240 mAh
90W
6.36"
1200 x 2670 pixels
50 MP
8K@24/30fps
Specs

Xiaomi 15

General

Launch Date

September 16, 2025

March 11, 2025

Availability

Available Now

Android 15

Custom UI

ColorOS 15

HyperOS 2

OS Updates

2 Years

4 Years

Security Updates

3 Years

6 Years

AI Features

AI LinkBoost 3.0, AI VoiceScribe, AI Call Assistant, AI Assistant for Notes, Google Gemini, AI Eraser 2.0 and more

HyperAI, Circle to Search, AI Write, AI translate, AI Erase Pro, AI Summary and more

Body

Dimensions

163.1 x 77.6 x 7.7 mm

152.3 x 71.2 x 8.1 mm

Thickness

7.7 mm

8.1 mm

Weight

195 g

189 g

Build Details

Plastic Back

Aluminum Alloy Frame

IP Rating

IP69 (dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min), MIL-STD-810H compliant*, also IP68 rated)

IP68 (dust tight and water resistant (immersible up to 1.5m for 30 min))

Display

Size

6.8 inches

6.36 inches

Type

AMOLED, 1B colors

LTPO AMOLED, 68B colors, Dolby Vision, HDR10+

Refresh Rate

120 Hz

Peak Brightness

1600 nits

3200 nits

Resolution

1280 x 2800 pixels

1200 x 2670 pixels

Pixel Density

453 ppi

460 ppi

Aspect Ratio

19.5:9

20:9

Screen to Body Ratio

89.1 %

90.0 %

Protection

AGC DT-Star D+

Performance

Chipset¹

Qualcomm Snapdragon 7 Gen 3

Qualcomm Snapdragon 8 Elite

Process Size

4 nm

3 nm

CPU

Octa-core
1x2.63 GHz Cortex-A715
3x2.4 GHz Cortex-A715
4x1.8 GHz Cortex-A510

Octa-core
2x4.32 GHz Oryon V2 Phoenix L
6x3.53 GHz Oryon V2 Phoenix M

GPU

Adreno 720

Adreno 830

RAM & Storage

8GB 256GB (UFS 3.1)
12GB 256GB (UFS 3.1)

12GB 512GB (UFS 4.0)

RAM Type

LPDDR4X

LPDDR5X

Expandable Memory

Camera

Main Camera

50 MP
f/1.8, (wide), 1/2.88", 0.61µm, OmniVision OV50D40, PDAF, OIS, Up to 10x Optical Zoom

2 MP
f/2.4, (depth), 1/1.5", 1.75µm

50 MP
f/1.6, 23mm (wide), 1/1.31", 1.2µm, OmniVision Light Fusion 900, dual pixel PDAF, OIS

50 MP
f/2.0, 60mm (telephoto), 1/2.76", 0.64µm, S5KJN5, PDAF (10cm - ∞), OIS, 2.6x optical zoom

50 MP
f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, Samsung S5KJN1

OIS

Yes

Features

Color spectrum sensor, LED flash, HDR, panorama

Laser AF, color spectrum sensor, Leica lens, Dual-LED dual-tone flash, HDR, panorama

Video Recording

4K@30fps
1080p@30/60/120fps, gyro-EIS, OIS

8K@24/30fps
4K@24/30/60fps
1080p@30/60/120/240/960fps
720p@1920fps

Selfie Camera

32 MP
f/2.4, (wide), f/2.4, 1/3.1", 0.7µm, GalaxyCore 32E2

32 MP
f/2.0, 21mm (wide), 1/3.14", 0.7µm, OmniVision OV32B40

Selfie Features

Panorama

HDR, panorama

Selfie Video Recording

1080p@30fps, gyro-EIS

4K@30/60fps
1080p@30/60fps

Connectivity

SIM

Dual SIM (Nano + Nano)

Dual SIM
SIM1: Nano, SIM2: Nano

5G Support

Yes

10 5G bands
n1, n3, n5, n8, n28, n38, n40, n41, n77, n78

Yes

19 5G bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, n38, n40, n41, n48, n66, n75, n77, n78

VoLTE

Yes

Wi-Fi

Wi-Fi 6

Wi-Fi 7

Wi-Fi Details

802.11 ax, MIMO

802.11 a/b/g/n/ac/be/ax 5GHz 6GHz, MIMO

Wi-Fi Features

Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

USB

USB Type-C 2.0, OTG

USB Type-C 3.2 Gen2, Display Port, OTG

Bluetooth

5.2

5.4

NFC

Yes

GPS

Yes

Yes with A-GPS, Glonass

Infrared

UWB (Ultra Wideband)

Battery

Capacity

7000 mAh

5240 mAh

Type

Si/C Li-Ion

Removable

Wired charging

80W

90W

Charging Speed

100% in 61 mins

Reverse Wired Charging

Wireless Charging

50W

Reverse Wireless Charging

10W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

FM Radio

Extra Features

Sensors

Under-display optical fingerprint sensor, accelerometer, gyroscope, proximity, compass

Under-display ultrasonic fingerprint sensor, accelerometer, gyroscope, proximity, compass, barometer

Colors and Pricing

Colors

Festival Pink, Himalayan White, Gemstone Blue

Black, White and Green

Price in India

₹32999

₹64999

FAQs

Which phone has better performance?

In this performance comparison, the Xiaomi 15 with its Qualcomm Snapdragon 8 Elite (3nm) performs better than the Oppo F31 Pro Plus with the Qualcomm Snapdragon 7 Gen 3 (4nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Xiaomi 15 offers 4 years of OS updates, whereas Oppo F31 Pro Plus provides 2 years. For security updates, Xiaomi 15 offers 6 years of support compared to Oppo F31 Pro Plus's 3 years.

Which phone has a better display?

Both Oppo F31 Pro Plus and Xiaomi 15 feature AMOLED displays, offering vibrant colors and deeper blacks. Both smartphones offer the same 120 Hz refresh rate. Xiaomi 15 also boasts a brighter screen with 3200 nits of peak brightness, enhancing outdoor visibility. Notably, Oppo F31 Pro Plus offers a higher screen resolution, resulting in sharper visuals and more detailed content.

Which phone has a bigger battery and faster charging?

Oppo F31 Pro Plus comes with a larger 7000 mAh battery, which may offer longer usage on a single charge. Xiaomi 15 also supports faster wired charging at 90W, compared to 80W on Oppo F31 Pro Plus. Xiaomi 15 supports wireless charging at 50W, while Oppo F31 Pro Plus lacks this feature.

Which phone has better water and dust resistance?

Oppo F31 Pro Plus offers better protection against water and dust with an IP69 rating.

Can I buy these phones on Amazon?

Oppo F31 Pro Plus – Check price here
Xiaomi 15 – Check price here

¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.